function formatMoney(volume) {
  //输入单位为分
	let flag = 1
	if (volume < 0) {
		flag = -1;
		volume = -volume;
	}
	volume = volume / 100; //转为元
	if (volume > 1e6) {
		return flag * (volume / 1e6).toFixed(2) + '百万'
	} else if (volume > 1e4) {
		return flag * (volume / 1e4).toFixed(2) + '万'
	} else {
		return flag * volume.toFixed(2)
	}
}


function formatTime(time) {
	if (typeof time !== 'number' || time < 0) {
		return time
	}

	var hour = parseInt(time / 3600)
	time = time % 3600
	var minute = parseInt(time / 60)
	time = time % 60
	var second = time

	return ([hour, minute, second]).map(function(n) {
		n = n.toString()
		return n[1] ? n : '0' + n
	}).join(':')
}

function formatLocation(longitude, latitude) {
	if (typeof longitude === 'string' && typeof latitude === 'string') {
		longitude = parseFloat(longitude)
		latitude = parseFloat(latitude)
	}

	longitude = longitude.toFixed(2)
	latitude = latitude.toFixed(2)

	return {
		longitude: longitude.toString().split('.'),
		latitude: latitude.toString().split('.')
	}
}
var dateUtils = {
	UNITS: {
		'年': 31557600000,
		'月': 2629800000,
		'天': 86400000,
		'小时': 3600000,
		'分钟': 60000,
		'秒': 1000
	},
	humanize: function(milliseconds) {
		var humanize = '';
		for (var key in this.UNITS) {
			if (milliseconds >= this.UNITS[key]) {
				humanize = Math.floor(milliseconds / this.UNITS[key]) + key + '前';
				break;
			}
		}
		return humanize || '刚刚';
	},
	format: function(dateStr) {
		var date = this.parse(dateStr)
		var diff = Date.now() - date.getTime();
		if (diff < this.UNITS['天']) {
			return this.humanize(diff);
		}
		var _format = function(number) {
			return (number < 10 ? ('0' + number) : number);
		};
		return date.getFullYear() + '/' + _format(date.getMonth() + 1) + '/' + _format(date.getDay()) + '-' +
			_format(date.getHours()) + ':' + _format(date.getMinutes());
	},
	parse: function(str) { //将"yyyy-mm-dd HH:MM:ss"格式的字符串，转化为一个Date对象
		var a = str.split(/[^0-9]/);
		return new Date(a[0], a[1] - 1, a[2], a[3], a[4], a[5]);
	}
};

var mapUtils = {
	toRad: function(d) {
		return d * Math.PI / 180;
	},
	//计算地球上两个点之间的测地距离
	getDistance: function(lat1, lng1, lat2, lng2) {
		// lat为纬度,
		// lng为经度,
		let radLat1 = this.toRad(lat1);
		let radLat2 = this.toRad(lat2);
		let deltaLat = radLat1 - radLat2;
		let deltaLng = this.toRad(lng1) - this.toRad(lng2);
		let dist = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(deltaLat / 2), 2) + Math.cos(radLat1) * Math.cos(radLat2) *
			Math.pow(Math.sin(deltaLng / 2), 2)));
		return dist * 6378137;
		//alert(  getDistance(39.91917,116.3896,39.91726,116.3940) );
	},
	formatedDistance: function(distance) {
		if (distance > 1000) {
			return (distance / 1000).toFixed(2) + '公里'
		} else {
			return Math.round(distance) + '米'
		}
	}
}

module.exports = {
  formatMoney:formatMoney,
	formatTime: formatTime,
	formatLocation: formatLocation,
	dateUtils: dateUtils,
	mapUtils: mapUtils
}
